Half the songs on Christmas with John Denver and the Muppets (no, really! It’s a good album!) Some favorites:
Little Saint Nick by Dr Teeth and the Electric Mayhem
Christmas is Coming by Miss Piggy, Scooter and Gonzo
12 Days of Christmas by the whole gang
I don’t know who did it, and I only heard it once last year. Rudolph the Red-nosed Reindeer sung to the tune of * Free Bird*
It was amazing how well the lyrics fit to the tune.
I don’t know the artist, but the song is “I’m gettin’ nothin’ for Christmas”
And another vote for “The night Santa went crazy”
How could I forget Arlo Guthrie’s The Pause of Mister Clause and Santa Clause is Smoking Reefer by Fats Waller.